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. r J. v. GIESLER June 1930- THERMOSTATICALLY CONTROLLED VALVE UNIT Re. 17,696

2 SheetsSheet l Ongmal Flled Jan. 6, 1927 atboz new J. V. GIESLER June 1930' THERMOSTA'IICALLY CONTROLLED VALVE UNIT 17,696

2 Original Filed Jan. 6, 1927 sheets sheet v Reisaued June) 10, 1930 TUNITED. STATES P ENT OFFICE man v. antenna, or nroxvmma, 'rnnnnssnn, assrenon. nr unsnn' assrenmnnrs,

'ro 'rnnrunron synpnon oonrm, or xnoxvrnnn, rmmnssna, A consonarron or nnnawann TBEBHOB'I'A'IIOALLY-GONTBdLLED vanvn nn' Original 110. 1,875,841, dated July 8, 1928, Serial No. 159,499; filed January 8, 1927. reissue fled-February 21, 1980. Serial No. 430,430.

This invention relatesto thermostatically operated valve mechanism, and particularly to thermostatically operated valve mechanism for regulating the circulation of cooling medium through the cooling s stem of an in ternal combustion engine. T e invention is capable of embodiment in thermostatically operated valve mechanism both of the choker type wherein the position of the valve member determines the quantity of cooling medium circulating through the cooling system and of the by-pass type wherein the position of the valve member determines the path of I the cooling medium circulating through the coolin system.

i the i crease in use of thermostati- 1 cal y operatedvvalve mechanism for controllin the cirdulation of cooling medium through the cooling systems of automobile engines, particularly of the medium priced and lower priced cars, there is an increasing demand 'for thermostatically operated valve mechanism which constitutes a. self-contained unit and which is composed of a minimum number ofparts so that it is simple and invide a device of the character described wherein the valve seat and the mounting member for the unit are formed integrally with the support for the thermostat, so that the'unit is'composed of a fewreadily manufactored parts.

Another object of this invention is to provide a device of the character described wherein the valve seat and the parts for mounting and uiding-the thermostat are formed integral y and may be readily assembled with the thermostat, being partible on a plane extending lengthwise o the thermostat.

Other objects will appear aslthe description of the invention proceeds.

Application m- The invention is capable of receiving a varietyof mechanical expressions, two of which are'shown on the accompanying drawings, but it is tobe expressly understood that the drawings are for purposes of illus-' tration only and are not to be construed as a definition of thelimits'of the invention, reference being had to the appended claims for that purpo Referring in-detail to the drawings, wherein the same reference characters are employed to designate corresponding parts in the several figures, i y Fig. 1 is an elevation partly in longitudinal section of an embodiment of the present invention;

Fig. 2 is an end view of the embodiment of ig. 3 is a side view of the embodiment of Figji is an elevation of one of the halves of the combined support and valve seat employed in the embodiment of Fig. 1- Fig. 5 is an end view of one of said Fig. 6 is an end view of another embodiment of the present invention;

Fig. 7 is an elevation of the combined support and valve seatmember of Fig. 6;

Fig. 8 is an end view of said member; Fig. 9 is a side view and anend view of one of the clamping elements of the embodi;

ment of Fig. 6;

Fig. 10 is a side view and an end view of the other clamping element of the embodiment of Fig. 6.

y In the form shown in Figs. 1v to 5 inclusive, the thermostat 10 is illustrated as composed of a stationary end wall 11 and a movable end' wall 12 suitably attached. as by solderingorbrazing, to a deepl corrugated flexible tubular wall 13,-prefera 1y of resilient metal,

halves I and forming'a closed chamber which is designed to receive volatile fluid of any suitable character. shownas provided with a boss 14 which is reduced in diameter for a part of its length "as shown at 15 so as to forma head 16 which is'separa'ted from said stationary end wall 11 by an annular groove formed by said reduced portion 15 The movable end wall The stationary end wall 11 is.

12 is shown as provided, integrally therewith or suitably attached thereto, with a valve stem 17, and internally of the thermostat, with a tubular stop 18 to limit the contraction of the thermostat when the same is not mounted in position, although said-stop" could be mounted on said stationary wall if desired. The thermostat is also provided with a suitable filling opening 19, shown as extending through the boss 14 and sealed by I a stopper 20 and solder 21. 'The details of the construction of the thermostat form no,

part of the present invention, however, and it is to be expressl understood that :the thermostat may be 0 any suitable size, construction and type. 1

In conformity with the present invention means are provided for mounting a thermostat in operative position, guiding and preferably limiting, it during its expansive and contractive movements, and providing a valve seat for a yalve member-mounted on the valve stem 17 which means is composed of a minimum number of simply and mexpen sively manufactured parts that can \beeasily and quickly assembled. .In the form shown in Figs. 1 to 5 inclusive, the combined support and valve seat member is composed of two parts whichare partible on a plane ex tending longitudinally of the thermostat.

- Preferably these two parts are duplicates, so.

that they may be assembled about a thermos stat by en a ment in a plane which includes the axis 0 ti; thermostat or the valve stem,

although this is not essential as the two parts may be unlike if desired. As illustrated each part 'iS composed of a semi-annular disk 22- from which projects a pair'of integral legs 23, said legs being preferably parallel;

andextending at right angles to said semiannular disk, although this is not essential. Said legs 23 are also connected by a pair of transverse members 24 and 25 which are also preferably formed integrally therewith. Transverse member 24, which extends between the legs 23 adjacent their extremities opposite from the mmi-annular disk 22, is

provided intermediate its length with a.

hereinafter described, and the transverse member 24 may be reduced in width at its pgrtion 26, as shown at 31, for a purpose to described. 7 As shown more particularly in Fig. 5, the legs 23 and transverse portions 24 and 25 thougha'ny other suitable shape may be emare so disposed with respect to the chord of i the semi-annular diSk'QZ that 'a pair of sections as heretofore described may be assem "bled as shown in Fig. 2 with the chordal faces of saidsemi-annular disks, the edges of the legs and the faces of the transverse members 24 and 25 in contact ina plane extend ing longitudinally of thethermostat and preferably embracing the axis thereof. When so assembled the two semi-annular disks constitute a complete annulus,- as shown in Fig. 2, while the two pairs of transverse portions 24 and 25 respectively, constitute a pair of transverse members which are in face contact adjacent their extremities but which, intermediate their lengths, form apertures to receive the boss 14 and valve stem 17. When the two sections are duplicates recesses 27 and 29 are preferably semi-circular in shape, al-

ployed.

The parts-of the'thermostati'call operated valve unit may be assembled by aying the thermostat onone of the two sections with its 'valve stem 17 disposed in the recess 29 and the reduced portion 15 of the boss 14 received in the recess 27, and the second sec.- tion may then be applied to the first section, in inverted relationihereto, and the parts fixedly clamped in position by fastening elements 32 of any'suitable character, such as rivets, passed through thealigned apertures '30 of the transverse portions 24 and 25. The

thermostat may have been charged before assembly with the support, or if desired it may be: charged after assembly by reason of the ready accessibility of the filling opening 19 inthe boss 14 which projects exteriorly of the framework constituted by the legs 23 and the transverse portions 24 and 25 which form a rectangular opening within which the thermostat is positioned.

en so -assembled the two semi-annular disks 22 constitute a valve seat provided with a large central'valve opening 33 and, if desired, the face of said valve seat can be machined or ground for proper contact with the valve member. If it is desired to prevent leakage between the two portions of the valve seat, the contacting edges may be machined, or the two halves may be soldered together afterthey are assembled, or a gasket may be interposed between the two halves. The valve seat member is also preferably made ofsuch a size that it projects radially around the. valve member to asufiicient extent so that it may constitutes mounting member, of circular or other suitable shape, for the unit. The semi-annular sections 22 may beoriginairy formed to size,'or they may be machined to size after they are assembled. The two rates mostat. The two portions 24 by reason of.

their recesses 27 also embrace and clamp the boss 14 on the stationary end Wall 11 of the thermostat, and the transverse portion 26 is preferably made of such width that it is snugly received within thegroove 15 between the stationary end wall 11 and the head 16 of the boss 14, so that said stationary end wall is rigidly locked against displacement.

It is to be understood that said transverse portions 24L and 25 may be cast or otherwise initially formed to size, or either or both may be subsequently machined to provide the suitably'shaped recesses 27 and 29.

When the parts have been assembledas heretofore described, a valve disk 35 of any suitable size, construction and material may be mounted on the free end of the valve'stem 17 in any suitable way, being shown as retained thereon by a cotter pin 36. Said valve member is preferably so mounted on the valve stem 17 that when the valve member is in contact with the valve seat, the stop 18, when used, is out of contact with the opposed wall of the thermostat.

The two sections of the combined support and valve seat member are preferably formed as castings, and each of said sections is also preferably cast as a unit, although if found desirable each of said sections may be built up of detachable parts, although this would increase the number of parts to be made and handled and therefore not obtain the full advantage of the present invention;

In the form shown in Figs. 6 to 10 inclusive, the combined support and valve seat member is constructed as heretofore described except that the valve seat member 22 is formed as a complete annulus and the thermo stat is clamped to the transverse members 24 and 25 by separate clamping sections 2 1 and 25, as shown in Figs. 9 and 10. S'aid clamping members 24 and 25 are preferably made as separate pieces, althoughif desired said members could be connected by legs 23, in which event the construction would be the same as in the embodiment of Figs. 1 to 5 except that theentire valve seat member would be integral with one of the sections, while the second section would be composed of the legs 23 and the transverse portions 24 and 25. .VVhere separate clamping members 24 and 25 are used the legs 23 are preferably made of the form shown in Figs. 6 and 7 so as to have the requisite strength and rigidity and approximate in size the legs 23 as formed by the junction of the two sections of said legs in the form shown in Figs. 1 to 5. Otherwise the construction and manner of assembly and operation of the embodiment of Figs. 6 to 10 are or may be the same as that of the embodiment of Figs. 1 to 5. While it is referred that the pieces 24 and 25 be dup icates of the transverse portions 24 and 25, it is to be understood that if desired the transverse portions'24 and 25 and 24" and 25 may not be duplicats, as it is'not essential that the plane of severance of the arts coincide with a plane passing through t c axis of the thermostat or the valve stem.

It will therefore be perceived that a simplified thermostatically operated valve unit has been provided wherein the thermostat is mounted in a combined support and Valve seat member, which also preferably constitutes means for mounting the unit and for guiding and limiting the expansive and Contractive. movements of the thermostat, which is composed of a minimum number of easily and in- 'expensively manufactured parts that ma be quickly assembled, so that units of this 0 aracter may be produced with the minimum of ex ense and'labor.

hile the. embodiments of the invention illustrated on the drawings have been described with considerable particularity it is to be expressly understood that the invention is not restricted thereto, as the invention is capable of receiving other mechanical expressions, as will now be apparent to those skilled in the art, while changes may be made in the details of construction, arrangement andproportion of parts without departing from the spirit. of this invention. Reference is therefore to be had to the claimshereto a'ppended for a definition of the limits of the invention. a

What is claimed is: I 1. In a thermostatically operated valve unit, in combination with a thermostat, a thermostat support having a valve seat formed integrally therewith and being composed of sections partible on a plane extending longitudinally of said thermostat.

2. In a thermostatically operated valve unit, in combination with a thermostat, a thermostat support having a valve seat formed integrally therewith and. being composed of duplicate sections partible on a longitudinally extending plane.

3. In a thermostatically operated valve unit, in combination with a thermostat, a thermostat support and a valve seat member integrally therewith, said support and seat being com osed of sections partible in a plane extending ongitudinally of the thermostat.

6. In a thermostatically operated valve l umt, m'comblnatron wlth a thermostat, a

thermostat support and a valve seat} formed integrally therewith, said support and seat being composed ofduplicate sections partible in a plane including the axis of the thermostat.

7. In a thermostatically operated valve unit, in combination with a thermostat, .a combined thermostat support and valve seat comprising a memberhaving legs integral therewith and connected by transverse portions integrally formed therewith, one of said transverse portions providing means for rig-v idly securing said thermostat in position.

8. In a thermostatically operated valve unit, in combination with a thermostat, a

combined thermostat support and valve seat comprising a member having legs integral therewith and connected by transverse portions integrally formed therewith, one of said transverse portions constituting a guide for the expansive andcontractive movements of said thermostat.

9. In a thermostatically operated valve unit, in combination with a thermostat, a

combined thermostat support and ViillVG seat comprising a member having legs i1 1,tegral therewith and connected by transverse portions integrally formed therewith, one of said transverse portions constituting a stop for limiting the expansive movement of said thermostat.

10. In a thermostatically operated valve unit, in combination with a thermostat, a. combined thermostat support and valve seat comprising a member having legs integral therewith and connected by transverse por tions integrally formed therewith, said member constituting a mounting member for said support.

11. In a thermostatically operated valve .unit, in combination with a thermostah a combined thermostat support and valve seat comprising a member having le s integral therewith and connected by chorda ly extending transverse portions integrally formed therewith adjacent the opposite extremities thereof.

12. In a thermostatically'operated valve unit, in combination with a thermostat,-a combined thermostatsupport and valve seat composed of a member having legs integral therewith and connected by transverse memhers integrally formed therewith and means cooperating with said transverse members for retaining said thermostat in said support and providing means for rigidly securing said thermostat in position.

13. In a thermostatically operated valve unit, in'combination with a thermostat, a combined thermostat support and valve seat composed of a member having legs integral therewith and connected by transverse members integrally formed therewith and means.

cooperating with said transverse membersfor retaining said thermostat in said support and providing means for guiding the expansive and contractive movements of said thermostat.

14. In a thermostatically operated valve unit, in combination with'a thermostat, a' combined thermostat support and valve seat composed of a member having legs integral therewith and connected by transverse members integrally formed therewith and means cooperating with said transverse members for retaining said thermostat in said support and providing means for limiting the expansive movement of said thermostat.

15. In a thermostatically operated valve unit, in combination with a thermostat, a combined thermostat support and valve seat composed of a member having legs integral therewith and connected by transverse members integrally formed therewith and means cooperating with said transverse members, for retaining said thermostat in said support, said, member also constituting a mounting member for said support.

16. In a thermostaticallyoperated valve unit, in combination with a thermostat, a combined thermostat support and valve seat composed of a member having legs integral there with and connected by transverse members integrally formed therewith and means cooperating with said transverse members for 'retai-ning said thermostat in said support,

from the member parts and formed integrally therewith, and transverse portions integrally connecting said legs and providing a support for said thermostat, said member also constituting a means for mounting said support.

19. In a thermostatically operated valve unit, in combination with a thermostat, a partible valve seat member, legs extending from the member parts 1 and formed integrally therewith, and transverse portions-integrally connecting said legs and providing a support for said thermostat said transverse portions affording means for rigidly mounting said thermostat in fixed, position.

20.'In a thermostatically operated valve mostat. I

23. In a thermostatically operated valve unit, in combination with a thermostat, a partible valve seat member, legs extending from the member parts and formed integrally therewith, and transverse portions integrally connecting said legs and providing a support for said thermostat, said transverse portions affording means for guiding-the expansive and contractive movementsof said thermostat.

21. In a thermostatically operated valve unit, in combination with a thermostat, a

partible valve seat member, legs extending from the member parts and formed integrally therewith, and transverse portions integrally connecting sai legs and providing a support for said thermostat, said transverse portions affording means for limiting the expansive movement of saidthermostat.

22. In a thermostatically operated valve unit, in combination with a thermostat, a partible valve seat member, legs extending from the member parts and formed integrally therewith, and transverse portions integrally connecting said legs and providing a support for said thermostat, said member parts .and transverse portions being connectible in a plane extending longitudinally of the therunit, in combination with a thermostat, a partible valve seat member, legs extending from the member parts and formed integrally therewith, and transverse portions integrally connecting said legs and providing a support for said thermostat, said member parts with their connected legs and transverse portions constituting duplicate parts.

24. In a thermostatically operated valve unit, in combination with a thermostat, a thermostat support composed of sections formed of cast metal and comprising longiparts of which are cast integrally with the parts of said support. 26. In a thermostatically operated valve unit, in combination with a thermostat, an

open rectangular thermostat support formed of cast metal and partible on a plane extending lengthwise of said support, and a valve seat member formed integrally therewith.

27. In a thermostatically operated valve unit, in combination with a thermostat, an open rectangular thermostat support formed of cast metal and partible on a plane extending lengthwise of said support, and a partible valve seat member cast integrally with said support and partible at said plane.

28. In a thermostatically operated valve unit, in combination with a thermostat, an

-open rectangular thermostat support formed open rectangular thermostat support formed of cast metal and partible on a plane extendmg lengthwise of said support, one side of sa1d support providing a guide for the expansive and contractive movements of said thermostat.

30. In a thermostatically operated valve unit, in combination with a thermostat, an open rectangular thermostat support formed of cast metal and partible on a plane extending lengthwise of said support, one of the sides of said support providing a stop for limiting the expansive movement of said thermostat.

31. In a thermostatically operated valve unit, in combination with a thermostat, an open rectangular thermostat support embraclng said-thermostat and formed of cast metal, opposed members of said support being partib16111 a plane extending lengthwise thereof and formed to embrace elements projecting from the opposite ends of the thermostat, and a valve seat member cast integral with said support.

32. In a thermostatically operated valve unit, in combination with a thermostat, an openrectangular thermostat support embracing the thermostat and formed of cast metal, said support being partible in a plane extending lengthwise of said thermostat, and a.

valve seat member composed of sections each of which is cast integral with one of the parts of said support.

33. In a device of the character described, in combination with a thermostat, a valve stem and a valve disk operatively connected thereto, a cage for said thermostat composed of a head portion and a base portion connected'by longitudinally extending ribs, said head portion having an integral valve stem guide and an integral flange constituting a valve seat for said valve disk. up

34. In a device of the character described, in combination with a thermostat, a valve stem anda valve disk operatively connected thereto, a cage for said thermostat composed of a head portion and a base portion connected by longitudinally extending ribs, said head portion having a valve port in its end opposite .said thermostat, and a spider integrally connected with said cage, said pi r ha i g a nt a y a a g d huh ing a uid for said valve em-- 35.111 a device of the hm e d sc ibed,

n flmb nation w th a h r ost t, alve sk op r v y conn c ed 'he q, a age f r id the mns a mmp ed (if a he d Pl 'mion n 'bas pfl t n nne ted by ,longimdinak 1y extending r bs, sa dhead P013503 having a valve p r n its end oppmsi e sai hemp:

stat, and a spider integrally cgpgeqtgd with d a a d spide pmt g w th said therm a to limit h expm i m vement? hereof. Y'

6- n vifi o th charact r d9 vfilled,

15 n qmbinfiti with he m tm a valve disk op at y c nect d theretqi sage Qf ast metal for sa d he mo tat hnvingfi h a p r ion provi ed with. a val e par and n in egra ly fo'mne flange around s id part so whi h can t u e at fer said v lve disk. and a p de ca t tegral y ith said age, 37, n 'a device 01 h:: character dese ib d, I in mbinat o w th athe mnstat, va ve isk perativg y nected hereto, nd a cage. ar as i th mosta cqmpusad of a head pwtiqn nd ba -portiol aonn cted y lnngitudimh 1y ex n i g bs, said hea partis n ha a l e port, a d a al mm gui e inmgm eon ected' t said b n; dwim of the qharacter im ibed, t erm atut, a valve mm the etn and cm'ying 1; why mnmber, a cage o sa d thennnmt prowd w th a valve PM, Hi spid r nss iatedjwi l mid part. um radially ex ending a ms integrally 90 said am: and having an in g al hu f mvalve stem gmd w mnny wh eb I have sign d this paq fi a inn,

vgemswn as. I a devi e of 119 charac -descrihada in mbi ation with thermqsta a a ve i k op ra i y wnnw herein, and a ag 0 a d. he most w ompfls 0.1 a he d pgrtio n a b se portipn qnneeted y l w as Wing a-wl por and a spider o med n ag ally w aid b and hav ng an 1 {rega entrally a ranged'elqnga ed'tubulwr isk 0 rative y co n ct d tharet y a s sm sa he me a t c mp sad o a ead 119 tion nd base p rt n conn cted by 1q gitudinal y extendmg ribs, ai ad mrtien h ng a valve port, and a spider formed inwgral y w th sa ribs and firming s gp on hermnstat,

$0 In a devih f eharactar dese bed, n cqmbinatiun wi h th my havi g iidina ye tandi lig i s, id h ad mmi the expansi e movemgnts of ad- 35- In a dwimofihq characte d sqzrib di. i combina iqn with a thermq at, a valve valve stem and a val e isk tip rti ely jqn I wmd fihmyet amember prb iding i sent for #Eflid alw. a tzally arr g d hub qrmmg a fim said val e stem, and v 

